426 



COLTJ^EID^. 



G. Body with 12 black annuli separated on the back by long dark 

 mahogany-red interspaces ; belly bright red, with the black 

 bars edged with yellow ; head and nape entirely black, with a 

 faint trace of the light occipital cross-band of the typical 

 form. 



0. cJ (V. 199 : C. 47). San Josg, Costa Eica. Mr. C. F. Underwood 



[C.]. 



E. Body with 19 black annuli, edged with yeUow, separated 

 by broader red, black-dotted interspaces ; the black of the head 

 extends to the posterior extremity of the parietals, where it 

 is fused with the first black annulus. 



a. Hgr. J (V. 195 ; C. 62). Yucatan. 



1. Body with 24 to 62 more or less regular narrow black annuli which 



may be edged with yellow ; the red spaces dotted or spotted with 

 black, these spots often arranged in regular transverse series ; 

 head black as far as the posterior third of the frontal, with a 

 yellow spot on the snout ; the first black annulus extends on 

 the posterior extremity of the parietals. {E. apiatus, Jan, 

 U. agl(Bope, Cope.) 



a, b-c, d-e. S (V. 212 ; Vera Paz, low 0. Salvin, Esq. [0.]. 

 C.56), $ (V. 229, 226; forest. 

 C.44,41),&yg.(V.198, 

 204 ; C. 49, 35). 

 /. 2 (V. 210; C. 40). Lanquin, Vera Paz. 0. Salvin, Esq. [C.]. 



g. Hgr. c? (V. 207 ; 0. ?). Yzabal, Guate- 0. Salvin, Esq. [C.]. 



mala. 

 h. Yg. (V. 199 ; C. 51). Stann Creek, Brit. Eev. J. Kohertson [C], 



Honduras. 



^ 18. Elaps psyches. 



Vipera psyches, Daitd. Sept viii. p. 320, pi. C. fig. 1 (1803). 

 Elaps psyches, Merr. Tent. p. 144 (1820) ; Bum. ISf Bibr. vii. p. 1212 

 (1854) ; Jan, Icon. Gen. 41, pi. vi. fig. 4 (1872). 



Eye measuring two thirds its distance from the mouth. Rostral 

 broader than deep ; frontal broader than the supraocular, once and 

 one third to once and a half as long as broad, as long as its distance 

 from the end of the snout, shorter than the parietals ; latter longer 

 than their distance from the intemasals ; one prse- and two post- 

 oculars ; temporals 1 + 1 (or 1+2); seven upper labials, third a 

 little larger than fourth, third and fourth entering the eye ; four 

 lower labials in contact with the anterior chin-shields, which are 

 shorter than the posterior. Scales in 15 rows. Ventrals 188- 

 214 ; anal divided ; subcaudals 32-47. Body annulate alternately 

 black and dark brown, with 48 to 62 more or less distinct narrow 



